作者:Hiroyoshi Takamura、Yuji Yamagami、Takayuki Kishi、Shigetoshi Kikuchi、Yuichi Nakamura、Isao Kadota、Yoshinori Yamamoto
DOI:10.1016/j.tet.2010.05.069
日期:2010.7
The convergent total synthesis of brevenal, a non-toxic brevetoxin antagonist, has been achieved. The ABC ring segment and the E ring precursor were connected by the intramolecular allylation followed by ring-closing metathesis to furnish the pentacyclic ether compound. An alternative route to the key synthetic intermediate, a pentacyclic ether core, was also examined. The right- and left-hand side
已经实现了无毒性的brevetoxin拮抗剂brevenal的聚合全合成。ABC环段和E环前体通过分子内烯丙基化然后闭环易位连接以提供五环醚化合物。还研究了通往关键合成中间体五环醚核的另一种途径。Wittig和Horner–Wadsworth–Emmons反应分别引入了右侧链和左侧链,以提供brevenal(1)。